You know your astrology sign, your favorite dessert, and which football team you cheer for. But how well do you know your very own teeth? 

If you've ever suffered from toothache, you know there's no pain quite like it. Has it ever made you stop and think about how such an important part of your anatomy is often ignored, though? 

Sure, you brush your teeth once or twice a day and maybe you occasionally floss, but did you know tooth enamel is the hardest substance of your entire body? 

If you answered "duh," this challenge will test your knowledge. Take this quiz to find out just how well you know your teeth: 

1. How many teeth do you have?

2. Can dental records be used to identify human remains?

3. Are braces the only orthodontic treatment used to correct and straighten teeth?

4. How long does it take for your tooth to die after it gets knocked out?

5. How many types of bacteria are in your mouth right now?

6. Do women smile more on average than men per day?

7. Are all your teeth visible to the naked eye?

8. What side of your mouth do you chew your food on if you're right handed?

10. How often should you give your teeth a check-up at the orthodontist?